labori katsetaseme hindamine laboritevahelise võrdluskatsetuse abil, labori katsevõime määramine laboritevahelise võrdluse abil, determination of laboratory testing performance by means of interlaboratory test comparisons, determines the performance of individual laboratories for specific tests or measurements and is used to monitor laboratories’ continuing performance, proficiency testing determines the performance of individual laboratories for specific tests or measurements and is used to monitor laboratories’ continuing performance